/* The bit-field below would have a problem if __INT_MAX__ is too
   small.  */
#if __INT_MAX__ < 2147483647
int
main (void)
{
  exit (0);
}
#else
struct foo
{
  unsigned b31 : 1;
  unsigned b30 : 1;
  unsigned b29 : 1;
  unsigned b28 : 1;
  unsigned rest : 28;
};
foo(a)
     struct foo a;
{
  return a.b30;
}
#endif